Method of forming bridges in tamper indicating closures

Details Method of forming bridges in tamper indicating closures Method of forming bridges in tamper indicating closures

1993-04-19

1996-02-06

Rada, Rinaldi I.

Cutting

Other than completely through work thickness or through work...

Scoring

83 30, 83 49, 83 54, 82 111, 82 47, 215252, 264154, B65D 4134

Patent

active

054888883

ABSTRACT:
A tamper indicating closure comprising a base wall and a peripheral skirt having an internal thread adapted to engage the threads of a container wherein a tamper indicating band is provided on the skirt by a plurality of circumferentially spaced bridges. The band includes portions adapted to engage an annular bead on the container. The bridges are formed by using a primary knife having an interrupted cutting edge to produce a circumferential score in the side wall of the closure leaving spaced connectors or bridges followed by using a secondary knife having a continuous cutting edge to provide a continuous external score line and an accurately dimensional radial thickness of the bridges. In a preferred method and apparatus, the closures engage the successive primary and secondary knives and are moved such that the closures roll relative to the knives.

REFERENCES:
patent: 3988953 (1976-11-01), Bosley et al.
patent: 4322009 (1982-03-01), Mumford
patent: 4538489 (1985-09-01), Takano
patent: 4545496 (1985-10-01), Wilde
patent: 4595110 (1986-06-01), Herr
patent: 4613052 (1986-09-01), Gregory et al.
patent: 4658976 (1987-04-01), Pohlenz
patent: 4721218 (1988-01-01), Gregory et al.
patent: 4801031 (1989-01-01), Barriac
patent: 4805792 (1989-02-01), Lecinski, Jr.
patent: 4934227 (1990-06-01), Knorr
patent: 4967920 (1990-11-01), Dahl
patent: 5090788 (1992-02-01), Ingram

Affiliated with

Also associated with

Rating

Method of forming bridges in tamper indicating closures does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of forming bridges in tamper indicating closures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of forming bridges in tamper indicating closures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2170539